Wrapping-paper-printing machine.



R. L. WELCH.

WRAPPING PAPER PRINTING MACHINE.

APPLICATION FILED MAR. 24, 1914.

1,1 31,757, Patented Mar. 16, 1915.

2 SHEETS-SHEET 1.

R. L. WELCH.

WRAPPING PAPER PRINTING MACHINE.

APPLICATION FILED MAR. 24, 1914.

Patented Mar. 16, 1915.

2 SHEETS-SHEET 2.

WzZfoes es.

THE NuRRls PE7ER5 CO PHOTO LNH@ WASHING TGNl n c ROBERT LIONEL WELCH, OF TORONTO, ONTARIO, CANADA.

WRAPPING-PAPER-PRENTING lJIACI-IINE.

Specification of Letters Patent.

llatented Mar, f6, 1915.

Application led March 24, 1914. SeriaI No. 826,850.

To all whom t may concern Be it known that I, ROBERT LIONEL rVnLcr-r, of the city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful improvements in Trapping-Paper-Printing Machines, of which the following is the specification.

My invention relates to improvements in wrapping paper printing machines and the object of the invention is to devise a simple, compact machine for printing advertisements or other matter on either one of two rolls of wrapping paper, which may be of different sizes and textures, in which the printing operation done on both rolls of paper is accomplished by one printing device so that either of the rolls of paper may be used so printed upon or plain, in which both printing and paper roll supports may be easily gotten at for the purpose of either changing the printing roller or recharging the machine with new paper rolis, in which a simple paper feeder is provided whereby the previously out edge of the paper is easily fed forwardly from the edge of the cutting knife for the purpose of providing a grip for the withdrawal of paper off the roll, in which the cutting knives are so supported and swung as to always remain in the same tangential position in relation to the periphery of the paper roll as the roll reduces from a maximum to a minimum diameter and it consists essentially of an open fronted casing having an opening in the back wall thereof and guide-ways in the bottom thereof, a laterally withdrawable paper roll and printing mechanism, a supporting carriage located normally in the main casing and capable of passing through the open front thereof, a plurality of paper roll supporting spindles removably mounted in the withdrawable frame, a platen roll also mounted in the withdrawable frame opposite each paper roll support and over which the paper' strips pass from the rolls, a printing roller, mechanism for alternately carrying the platen roller in and out of engagement with the printing roller, a cutting blade swingably supported over each paper roll in contact with the periphery thereof, and automatic paper feeding device for feeding the cut edge of the paper forwardly of the cutting edge of the knife as hereinafter more particularly explained by the following specication.

Figure l, is a general perspective View of my device. Fig. 2, is a vertical section through Fig. l showing the normal position of the paper roll support in full lines and the withdrawn position in dotted lines. Fig. 3, is a perspective detail view of the printing roller and co-acting parts removed from the machine. Fig. t, is a perspective detail of one of the cams for raising the printing roller. Fig. 5, is a detail of one of the paper feeding spools and operating mechanism thereof. Fig. 6, is a sectional detail view of the paper feeding spool operating lever.

In the drawings like letters of reference indicate co1"esponding parts in each figure.

A is the outer casing for containing my mechanism provided with an open front A and an opening A2 in the back wall A3 thereof.

A4 is a hinge door normally covering the opening A2 and provided with a pivoted supporting leg A5 designed to assume by gravity the position shown in dotted lines when the cover Af* is thrown down to the iorizontal open position.

A are guiding grooves formed in the bottom A7 of the casing for a purpose which will hereinafter appear.

B is the paper roll and printing roller supporting frame comprising the side plates B and B2 connected together by an upper cross bar B3 and lower cross bars B4 and B5. Each side plate B and B is provided at the edge in proximity to the opening A2 of the main casing with a bayonet slot B7, the opposite or forward edge of each plate being also provided with upper and lower bayonet slots Bs and B9.

C and C are the paper roll supporting spindles, the ends of which are supported respectively in the bayonet slots B8 and B9. Each paper roll supporting spindle C and C is provided with opposing tapered plugs Ci and C5 secured in position by set nuts C6.

C7 are collars secured on each spindle C and C in proximity to the end thereof and bearing when the spindle is in position within th'e bayonet slots BS and B9 against the inner faces of the side plates B and B2 thus preventing the longitudinal movement of the spindles C and C within the bayonet slots.

D and D are rolls of paper which may vary both in width and texture, the plugs C4 and C5 fitting into the ends of the eentral orifice extending through the paper rolls into which the plugs are forced by means of the set nut C0 thereby centralizing the roller to the required position. In order to form a support for the center portion of the paper roll when it is unwound and approaching its minimum diameter' I have provided the annular disks E and E connected together by undulating resilient wires E2. When the paper roller has been placed in position upon the supporting spindle one of the plugs C4 or C0 is set to the required position. The spindle is then passed through the center of the paper roll and the washers E and E connected by wires E2 threaded on to the spindle against the inner end of the plug. It will, of course, be understood that in this position the undulations of the wires E2 are spread so as to bring the wire nearer to a straight line than in the position shown in the drawing. The opposing plug is then threaded on to the spindle and forced up to the required position by the set nut C0, the undulations of the wires E2 being thereby compressed together longitudinally of the lwires and then shortened longitudinally but expanded radially so as to lill the space between the central spindle and the inner periphery of the wire thereby supporting the central portion of the roll.

F is a platen roller secured on the spindle F- journaled in a stationary position in the plates B and B2 and to the rear of the spindle C.

B10 are'arc-shaped slots formed in the plates B and B2 and in horizontal aline-V ment.

F2 is a spindle which extends between the plates B and B2 `and at its ends through the slots B10.

F7 is a platen roller mounted upon the spindle F2 to the rear of the spindle C hereinbefore described.

The paper strips D2 and D3 extend from the rolls D and D beneath the platen rolls F and F3 and pass over the same and return to the rolls D and D over which they pass as shown particularly in Fig. 2 of the drawings.

G is a spindle extending between the plates B and B2 and through the slots B7.

H is a cam lever provided with an oval shaped cam H and a retaining flange H2. In its normal position the cam H fits within the bottom of the bayonet slot B7, the plate B or B2 fitting between the retaining flange H2 and the body of the lever H. It will also be understood that each slot B7 is provided with a cam H, the ends of the spindle G resting upon the periphery of the cams in the position shown in the drawings.

I is a rod secured. at its ends in the plates B and B2.

J and J are levers fulcrumed intermediately of their length upon the ends of the rod I. The rear end of each lever J and J is connected by a link J2 to the end of the cam lever H. The opposite end of the lever J is provided with an operating handle which extends in its normal position in a downwardly inclined direction past the front end of the plate B.

J 3 is a supplemental lever provided at one end with a slotted enlargement J 4. A lever J 2 is located to the outside of each plate B and B2 in proximity to the slots B70 so as to receive through its slotted end J 4 the projecting ends of the spindle J2.

J 7 are links connecting the opposite ends of the levers J 2 with the levers J and J as shown by full lines in Fig. l and dotted lines in Fig. 2.

K is the printing roller mounted upon the .spindle G.

K and K2 are side arms swung upon the spindle Gr.

K3 and K2 are spindles journaled in the arms K and K2 and on which are mounted the inking roller K5 and distributing roller K0 respectively.

It will, of course, be understood that the roller K5 is provided with a covering of soft absorbent material such as felt designed to carry a charge of printing ink. The roller K0 is formed of rubber and runs in contact with the inking roller K5 and the printing roller K thereby transferring a suflicient supply of ink from the inking roller to the printing roller. Each arm K and K2 is provided with an open slot K7 designed to engage and extend over` the rod I when in position within the machine.

L and L are cross rods secured in the plates B and B.

L2 and L3 are downwardly spring held arms swung at their inner ends upon the rods L and L and L4 and L5 are paper cut ting knives secured to the outer ends of the arms L2 and L2 which are swung at their inner ends on the rods L and L. The knives L2 and L5 are secured to the arms L2 and L3 in such position and the arms L2 and L3 swung from such center that the knives remain in the same angular position to the periphery of the paper rolls as it decreases from a maximum to a minimum diarneter.

L0 and L7 are rods extending between the arms L2 and arms L2'.

L0 are spools mounted upon the rods L0 and L7 and provided with serrated rims L9 delsligned to engage the surface of the paper ro s.

L10 is a ratchet wheel secured to each of the rods LG and L7.

L11 is a gravity dog carried by each spool LS in engagement with the ratchet L10.

M is an operating lever secured to the end of each rod L6 and L7 and provided with a weighted lever end M. Each rod LG and L7 is provided with a reduced portion L12 having an annular groove L13 formed therein and a further reduced squared end L14. The lever M is provided with a recess M2.

M2 is a securing pin extending through the lever M and engaging the groove L13 thereby securely holding the lever in position on the reduced portion L12 and yet capable of free rotary movement thereon.

O is a ratchet wheel mounted on the squared end L1", the teeth of which are set in the reverse direction to the ratchet wheel L10 hereinbefore described.

L15 is a co-acting dog carried by the lever lll and engaging the ratchet wheel O.

The carriage B is slidably supported upon the rollers B10 which travel in the grooves AG and front rollers B11 which rest upon the counter or supporting structure on which the cabinet or casing A is mounted.

Having described the principal parts involved in my invention 1 will briefly describe the operation of the same.

1n Fig. 2, it will be noticed that the printing roller K is in contact with the paper strip D3 passing over the platten roller F. By drawing on the free end of the paper strip projecting from beneath the knife L5 the paper roll is unwound and as the strip passes over the platen rollen F beneath the printing roller K an advertisement is printed thereon by means of the printing roller. rllhe piece of paper then is torn olf the knives L5 serving to sever the paper. 1n order to feed the paper forward suiiiciently to provide another gripping edge projecting from beneath the knives L5 the lever M at the end of the arm L7 is raised thereby turning the roll LT by means of the ratchet O and dog L15. This rotary movement of the rod turns the ratchet L10 engaging the dog L11 thereby turning the spool L the serrated edges of which are in contact with the paper. This serves to turn the paper roll a short distance to feed the previously cut edge forwardly of the paper cutting knife.

1f it is desired to print an advertisement on the strip of paper D2 of the roll D instead of on the strip D3 of the roll D I raise the lever J which simultaneously raises the cam lever H and depresses the inner end of the lever J3 carrying the platen roller F3 by means of the connecting links J5 and J2. By this operation it will be seen that the printing rol er is raised slightly by the oval cam H so as to raise the printing surface of the printing roller out of contact with the paper strip D. Simultaneously the platen roller carrying the paper strip D2 is carried into engagement with the printing roller as indicated by dotted position 3 shown in Fig. 2. The paper strip D2 may then be drawn olf the roll D and printed in a similar manner as previously described in relation to the paper roll D. As previously indicated the arms L2 and L3 are swung from such center and the knives L4 are secured to the ends of the arms atV such an angle that they will always remain in the same angular relative position to the periphery of the paper roll as the paper strip is withdrawn off the roll reducing the diameter of the same from a mairimum to a minimum diameter.

11V hen it is necessary to change or clean the printing roller the cover A3 is swung down into the position shown by dotted lines in Fig. 2, such cover thus forming a table. The hooks K7 are then unhooked from the rod 1 and the printing mechanism withdrawn through the opening A2 on to the table A4.

Although 1 have shown one continuous printing roller it will, of course, be understood that the roller may be divided into several sections, each section carrying a different portion of advertising matter and which may be separately engaged with different colored ink rollers, there being, of course, a separate inking and distributing roll for each section.

When it is necessary to place a new roll of paper in the machine all that it is necessary to do is to withdraw the supporting frame B into the position shown by dotted lines in Fig. 2.

lVliat 1 claim as my invention is.

1. A wrapping paper printing machine comprising upper and lower rolls from which paper is drawn, printing means common to beth rolls, and means actuated by the withdrawal of the paper to cause the printing action to take place on the roll from which the paper is being drawn.

2. A wrapping paper printing machine comprising a main frame, a plurality of rotatable paper roll supports, and a printing mechanism provided with a printing roller and means for carrying the printing roller alternately into engagement with the paper of one roll and simultaneously out of engagement with the other roll.

3. A wrapping paper printing machine comprising upper and lower rolls of paper suitably supported and from which paper is drawn, a printing roller, means whereby said roller is moved into printing contact with either of the rolls and means whereby one of said rolls may be given movement simultaneously in relation to the printing roller.

a. A wrapping paper printing device comprising a main frame, a plurality of rotatable paper roll supports, platen rollers over which the paper strips pass from the rolls, a printing mechanism provided with a printing roller, and means for carrying the printing roller alternately into engagement with the paper of one roll and simultaneously out Aof engagement with the paper of the other roll, as and for the purpose specied.

5. A wrapping paper printing machine comprising a main casing, a pair of rotatable paper roll supports, an upper and lower platen roller over which the paper of each roll passes, a printing mechanism provided with a printing roller, means for lowering the printing roller into contact `with the paper of the lower roll and simultaneously loweringthe upper platen roller and the paper thereon out of contact with the printing roller and means for raising the printing roller from contact with the paper of the lower roll, and simultaneously lowering the upper roll into contact with the printing roller, as and for the purpose specified.

6. In a wrapping paper printing machine, the combination with the rotatable paper roll support and the cutting knife extending longitudinally of the paper roll, of a suitably supported shaft extending parallel with the paper roll, rotatable members supported upon the shaft having a serrated periphery inv engagement with the paper roll, a turning lever designed when raised to turn the rotatable members and the paper roll in contact therewith, and to fall back to its normal position out of engagement with said rotatable members, as and for the purpose specilied.

7. A wrapping paper printing machine comprising a main supporting frame, a pair of rotatable roll supporting members supported in the frame, a pair of platen rollers, a printing roller supported on a cross shaft, cam levers supported in the frame at each end of the shaft and on the cam of which the ends of the shaft rest, means for lowering the upper platen roller, and means for simultaneously turning the cams to raise the printing roller, as and for the purpose specified.

8. In a wrapping paper printing machine, the combination with the supporting frame having suitable slots therein, a prin ing roller provided with a supporting shaft having its ends extending through the aforesaid slots, an oval cam resting between the end of the slot and the printing roll supporting shaft, Aa supporting lower platen roller, a pair of movable platen rollers, a main operating lever, and a link and lever connection between the main operating lever and the movable platen roller and main operating lever and cam roller, as and for the purpose specilied.

9. A wrapping paper printing machine comprising a main supporting frame, a pair of rotatable roll supporting members supported in the frame, a pair of platen rollers, a suitably supported printing roller interposed between the platen rollers, cam levers supported in the frame at each end of the shaft and on the cam of which the ends of the shaft rest, as and for the purpose specified.

l0. In a device of the class described, a supporting structure having slotted side walls, an upper platen roller and a lower platen roller supported between such wall, a printing roller interposed between the platen rollers, a supporting shaft extending through the slots of the side walls and on which the printing roller is supported, a cam means located in each slot for raising the shaft and the printing roller out of contact with the lower platen roller, as and for the purpose specified.

l1. In a wrapping paper printing machine, the combination with a paper roll and rotatable support therefor, of a cutting blade, swinging arms supporting the blade, a shaft carried by the arms, a lever swung on the shaft, a serrated drum mounted and normally in engagement with the paper roll and means whereby the lever and shaft and the shaft and drum are engaged during the upward throw of the lever and disengaged during the downward throw of the lever, as and for the purpose specied.

l2. In a wrapping paper printing machine, the combination with the casing having an opening therein, an upper platen roller and a lower platen roller over which separate strips of paper are designed to pass, a printing roller removably supported within the casing in proximity to said opening and means for carrying the printing roller and paper passing over the upper and lower platen rollers alternately in and out of engagement, as and for the purpose specified.

ROBERT LIONEL WELCH. IVitnesses M. EGAN, E. PENNooK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

